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How to repair cars - Quiz
Contributed by: Simpson
  • 1. What is the first step in diagnosing a car problem?
A) Replacing the spark plugs
B) Checking the engine oil level
C) Gathering information from the driver
D) Running a diagnostic scan
  • 2. What tool is used to measure tire pressure?
A) Multimeter
B) Torque wrench
C) Tire pressure gauge
D) Socket wrench
  • 3. What does 'CEL' stand for in car diagnostics?
A) Car Electrical Load
B) Central Engine Location
C) Check Engine Light
D) Cylinder Exhaust Leak
  • 4. What is the purpose of motor oil?
A) Provide fuel to the engine
B) Lubricate engine components
C) Cool the engine
D) Clean the exterior of the engine
  • 5. What part of the car is responsible for starting the engine?
A) Starter motor
B) Fuel pump
C) Alternator
D) Distributor
  • 6. What does a car battery primarily provide?
A) Hydraulic power
B) Electrical power
C) Pneumatic power
D) Mechanical power
  • 7. Which component is responsible for filtering air entering the engine?
A) Oil filter
B) Cabin air filter
C) Air filter
D) Fuel filter
  • 8. What is the function of the radiator?
A) Heat the engine oil
B) Cool the engine coolant
C) Filter the engine coolant
D) Store the engine coolant
  • 9. What tool is used to tighten nuts and bolts to a specific torque?
A) Adjustable wrench
B) Socket wrench
C) Pliers
D) Torque wrench
  • 10. What is the purpose of brake fluid?
A) Lubricate the brake pads
B) Clean the brake calipers
C) Transmit pressure to the brakes
D) Cool the brake rotors
  • 11. What component is responsible for generating electricity while the engine is running?
A) Starter motor
B) Alternator
C) Voltage regulator
D) Distributor
  • 12. What is the purpose of shock absorbers?
A) Transmit power to the wheels
B) Provide power steering
C) Control suspension movement
D) Cool the engine
  • 13. What part connects the engine to the transmission?
A) Axle
B) Differential
C) Clutch (in manual transmissions)
D) Wheel bearing
  • 14. What is the function of the catalytic converter?
A) Filter engine oil
B) Improve fuel economy
C) Increase engine power
D) Reduce harmful emissions
  • 15. What is the purpose of the spark plugs?
A) Filter the air intake
B) Ignite the air-fuel mixture
C) Cool the engine
D) Lubricate the engine
  • 16. What is the first thing to disconnect when working on the electrical system?
A) Starter motor wiring
B) Negative battery terminal
C) Positive battery terminal
D) Alternator wiring
  • 17. What does ABS stand for?
A) Advanced Braking System
B) Automatic Braking System
C) Auxiliary Braking System
D) Anti-lock Braking System
  • 18. What is the purpose of a fuse?
A) Regulate engine temperature
B) Protect electrical circuits
C) Store electrical energy
D) Increase electrical voltage
  • 19. What is a common symptom of a failing fuel pump?
A) Overheating engine
B) Brake failure
C) Difficulty starting the engine
D) Headlights dimming
  • 20. What does PSI stand for when measuring pressure?
A) Pressure standard index
B) Pascals per square inch
C) Points per square inch
D) Pounds per square inch
  • 21. What is the function of the thermostat?
A) Monitor oil pressure
B) Adjust air-fuel mixture
C) Regulate engine temperature
D) Control fuel injection
  • 22. What is used to remove rust from metal parts?
A) Grease gun
B) Wire brush
C) Spark plug socket
D) Oil filter wrench
  • 23. What is the most common cause of overheating?
A) Faulty spark plugs
B) High oil pressure
C) Low coolant level
D) Dirty air filter
  • 24. What is the function of the differential?
A) Generate electricity
B) Allow wheels to rotate at different speeds
C) Absorb shocks
D) Control steering
  • 25. What safety equipment should always be worn when working on cars?
A) No gloves
B) Sandals
C) Shorts
D) Safety glasses
  • 26. What is the purpose of wheel alignment?
A) Increase engine power
B) Improve fuel economy
C) Reduce wind noise
D) Ensure proper tire wear and handling
  • 27. What is a common symptom of worn brake pads?
A) Difficulty starting the engine
B) Dimming headlights
C) Squealing or grinding noises
D) Increased engine temperature
  • 28. What is the purpose of power steering fluid?
A) Lubricate the engine
B) Clean the windshield
C) Cool the brakes
D) Assist in steering the vehicle
  • 29. What should you do if you spill oil while working on a car?
A) Wash it down the drain
B) Clean it up immediately with absorbent material
C) Leave it to evaporate
D) Cover it with dirt
  • 30. What tool is commonly used to lift a vehicle for repairs?
A) Pliers
B) Hammer
C) Screwdriver
D) Jack
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